The most expensive electric motor that has the market today are the dc motors that because it takes several devices that convert alternating current into direct current, the investment is very high and so it is necessary to make a basic account to see You pay to have this type of engine in a machine, noting that energy expenditure is also high. JML1510T
As for the AC motors are cheaper and more widely used, because the electricity is distributed in the form of alternating electric current, thereby reducing their cost, these engines are found in many household usage equipment such as fan, mixer, blender, among others.
Below classify in a simple manner a comparison between the two types of engines.
DC: chain in which it has continuous flow of electrons and orderly in the same direction. AC: is a current whose magnitude and direction vary, there is variation of electrical current during operation, unlike direct current. .